User's Manual

Silicon Laboratories Finland Oy
Page 12 of 45
3.3 Input / Output Terminal Characteristics
3.3.1 Input/Output Terminal Characteristics (Digital)
Digital Terminals
Min
Typ
Max
Unit
Input Voltage Levels
V
IL
input logic level low
2.7 V ≤ VDD ≤ 3.0 V
-0.4
-
0.8
V
1.7 V ≤ VDD ≤ 1.9 V
-0.4
-
0.4
V
V
IH
input logic level high
0.7 VDD
-
VDD + 0.4
V
Output Voltage Levels
V
OL
output logic level low
(I
O
= 4.0 mA) 2.7V ≤ VDD ≤ 3.0 V
-
-
0.2
V
VOL output logic level low
(
IO
= 4.0 mA) 1.7V ≤ VDD ≤ 1.9
-
-
0.4
V
VOL output logic level high
(I
O
= 4.0 mA) 2.7V ≤ VDD ≤ 3.0
VDD - 0.2
-
V
VOL output logic level high
(I
O
= 4.0 mA) 1.7V ≤ VDD ≤ 1.9
VDD - 0.4
-
V
Input and Tristate Current with
Strong pull-up
-100
-40
-10
µA
Strong pull-down
10
40
100
µA
Weak pull-up
-5.0
-1.0
-0.2
µA
Weak pull-down
0.2
1.0
5.0
µA
I/O pad leakage current
-1
0
1
µA
C
I
input capacitance
1.0
-
5.0
pF